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GRAMMAR RULES / AFFECT VS. EFFECT

Affect vs Effect: Difference, Examples & Checker

In most everyday writing, affect is a verb meaning to influence, while effect is a noun meaning a result.

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THE RULE

Affect vs. Effect

QUICK EXPLANATIONUse “affect” for the action of influencing something and “effect” for the result produced by that influence in the most common cases.Use the examples below to see the difference in context.
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EXAMPLE

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Needs revision

The schedule change had a major affect on attendance.

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Revised

The schedule change had a major effect on attendance.

Why the revision works

The sentence needs a noun meaning “result,” so “effect” is the common correct choice.

FIX IT

Three checks to make in your own sentence.

  • Ask whether you mean an action of influencing: usually affect.
  • Ask whether you mean a result or outcome: usually effect.
  • Check the whole sentence because both words have less-common grammatical uses.

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FAQ

Affect vs. Effect questions.

Is affect usually a verb?+

Yes. In common usage, affect is usually a verb meaning to influence.

Is effect usually a noun?+

Yes. In common usage, effect is usually a noun meaning a result or consequence.

Are there exceptions?+

Yes. Affect can be a noun in specialized contexts, and effect can be a verb meaning to bring something about.